CN2578766Y - High-performance heat exchanger with external spiral pipes - Google Patents

High-performance heat exchanger with external spiral pipes Download PDF

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Publication number
CN2578766Y
CN2578766Y CN 02258564 CN02258564U CN2578766Y CN 2578766 Y CN2578766 Y CN 2578766Y CN 02258564 CN02258564 CN 02258564 CN 02258564 U CN02258564 U CN 02258564U CN 2578766 Y CN2578766 Y CN 2578766Y
Authority
CN
China
Prior art keywords
heat exchanger
thread groove
exchanger tube
efficient
screwed pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 02258564
Other languages
Chinese (zh)
Inventor
郭宏新
刘丰
李来所
马明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Sunpower Technology Co Ltd
Original Assignee
JIANGSU SUNPOWER CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU SUNPOWER CO Ltd filed Critical JIANGSU SUNPOWER CO Ltd
Priority to CN 02258564 priority Critical patent/CN2578766Y/en
Application granted granted Critical
Publication of CN2578766Y publication Critical patent/CN2578766Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a gas-liquid, or liquid-gas, or gas-gas heat exchanger used in chemical industry, petroleum industry, metallurgy industry and heat energy engineering. The utility model comprises a casing and close covers at both ends of the casing. Heat exchange pipes are arranged in the casing through a front pipe plate and a back pipe plate. The upper part of the close cover is provided with a medium inlet and a medium outlet. The upper part of the casing is provided with a material inlet and a material outlet, wherein, the heat exchange pipes can be a plurality of straight pipes which are arranged side by side, or the heat exchange pipes can be a plurality of U-shaped pipes which are arranged side by side. The outer wall of each heat exchange pipe is provided with a thread groove, and the inner wall is provided with a porous metal layer, or a thread groove, or a corrugated groove. The outer wall of each heat exchange pipe of the utility model is provided with the thread groove, the inner wall is provided with the porous metal layer, or the thread groove, or the corrugated groove, and the casing adopts a baffling rod for supporting a pipe bundle of the heat exchange pipe. Therefore, compared with a conventional thread pipe and a smooth pipe, the heat exchange pipe of the utility model has the characteristics that both surfaces are strengthened, heat transfer coefficient is high, flow resistance is low, ability for resisting corrosion of medium is strong, etc.

Description

Efficient outer screwed pipe heat exchanger
Technical field
The utility model relates to a kind of employed solution-air of chemical industry, oil, metallurgy and Thermal Power Engineering, liquid-gas, gas-gas or liquid-liquid heat exchanger that is used for.
Background technology
Existing solution-air, liquid-gas, gas-gas or liquid-liquid heat exchanger is made of housing and two ends end socket thereof and the heat exchanger tube that is arranged on enclosure interior, because its heat exchanger tube is light pipe or screwed pipe, then their heat exchange efficiencies are low, fluid resistance is big, influence the heat exchange effect, and resistance to corrosion is poor, and the reinforcement degree is not enough.
Summary of the invention
The purpose of this utility model is exactly in order to address the above problem, the efficient outer screwed pipe heat exchanger that provide a kind of heat transfer efficiency height, heat exchange area is big, fluid resistance is little, anti-dielectric corrosion ability is strong.
Technical solution of the present utility model:
A kind of efficient outer screwed pipe heat exchanger, it includes the capping at housing and two ends thereof, be provided with heat exchanger tube by forward and backward tube sheet in the housing, in capping, be provided with medium import and media outlet, on housing, be provided with material inlet and material outlet, wherein, heat exchanger tube can be many straight tubes that are arranged side by side, also many U type pipes that are arranged side by side is characterized in that the outer wall of each heat exchanger tube is provided with thread groove, and its inwall is provided with porous metallic layers or thread groove or wave groove.
The utility model is provided with thread groove at the outer wall of each heat exchanger tube, and wall is provided with porous metallic layers or thread groove or wave groove within it, and housing adopts rod baffle to support the heat exchanger tube tube bank.So heat exchanger tube of the present utility model compares with traditional screwed pipe, plain tube, have two-sided strengthened, characteristics such as heat transfer coefficient height, flow resistance are low, and anti-dielectric corrosion ability is strong.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the partial structurtes schematic diagram of heat exchanger tube of the present utility model.
The specific embodiment
As Fig. 1,2, efficient outer screwed pipe heat exchanger of the present utility model, it includes the capping 2 at housing 1 and two ends thereof, be provided with heat exchanger tube 4 by forward and backward tube sheet 3 in the housing 1, in capping 2, be provided with medium import 5 and media outlet 6, on housing 1, be provided with material inlet 7 and material outlet 8, wherein, heat exchanger tube 4 can be many straight tubes that are arranged side by side, also many U type pipes that are arranged side by side, characteristics of the present utility model are, the outer wall of each heat exchanger tube 4 is provided with thread groove, and its inwall is provided with porous metallic layers or thread groove or wave groove 9.
In the utility model, the thread groove of the outer wall of each heat exchanger tube 4 can be continuous, also is interrupted, preferably the two ends outer wall of each heat exchanger tube 4 is the even surface structure, so that fixedly connected with the tube sheet 3 at two ends, other is the thread groove structure, its groove depth is 0.2-2mm, and the best is 0.5-1.5mm.The porous metallic layers 9 of the inwall of each heat exchanger tube 4 can adopt 50-120 purpose aluminium powder, iron powder or nickel powder sintering or be painted on the inwall of heat exchanger tube 4 in vacuum high temperature furnace, form rough a large amount of aperture, can quicken vaporizing liquid greatly and generate bubble, the thickness of this porous metallic layers 9 is 0.1-0.6mm, best 0.2-0.3mm.If the inwall thread groove 9 of each heat exchanger tube 4, its groove depth are 0.1-1mm, it requires should adopt spoke line thread groove under the little situation in fluid resistance.If the inwall wave groove 9 of each heat exchanger tube 4, the peak-to-peak value between its crest and the trough are 0.1-1mm.
As Fig. 1, can come support fixation by the many rod baffle 10 that are welded on the baffling circle in the middle of each heat exchanger tube 4, rod baffle 10 be thin round bar, is weldingly fixed on the baffling circle of annular with level or vertical direction respectively to constitute support.Because of each corrugated tube 4 adopts the rod baffle supporting constructions, then housing 1 fluid flow resistance can reduce to light pipe 1.01-1.15 doubly.
The utility model should be provided with the floating head structure that is made of Floating Head Flange 11 and hook circle 12 in the rear end of housing 1 capping 2 when temperature of charge is higher, each heat exchanger tube 4 and back tube sheet 3 are moved in housing 1.
Heat exchanger tube of the present utility model is with special equipment the plain tube outer surface to be manufactured thread groove with the technique for rolling that does not have cutting, be processed into thread groove or come spoke wire or wave groove at the heat exchanger tube inwall according to the medium process characteristic, or at pyrolytic coating of heat exchanger tube inwall or sintered porous metal material coating, coating material is metals such as Al, Fe or Ni.Heat exchange tube material is 10 #, 20 #, 0Cr19Ni9,1Cr18Ni9Ti, CrMo steel etc.Exist because this heat exchanger tube inner surface has a large amount of beads, surface area can increase several 10 times, thereby has strengthened heat transfer.Heat exchange pipe external surface has thread groove, its inner surface has thread groove, comes spoke line, wave groove or porous coating, improved the turbulence intensity of fluid greatly, flow rate of fluid and flow direction have constantly been changed, destroyed laminar sublayer, changed the flow regime of medium side interlayer, destroyed or the elimination of thermograde between from the tube wall surface to the main flow, improved the inside and outside heat transfer coefficient of pipe greatly, and under low flow velocity, can reach turbulent condition, make that thermograde is very little in the tube wall, thermal resistance is little, overall heat-transfer coefficient improves 1-5 doubly than common tube.

Claims (10)

1, a kind of efficient outer screwed pipe heat exchanger, it includes the capping at housing and two ends thereof, be provided with heat exchanger tube by forward and backward tube sheet in the housing, in capping, be provided with medium import and media outlet, on housing, be provided with material inlet and material outlet, wherein, heat exchanger tube or many straight tubes that are arranged side by side, or the many U type pipes that are arranged side by side, it is characterized in that the outer wall of each heat exchanger tube is provided with thread groove, its inwall is provided with porous metallic layers or thread groove or wave groove.
2, by the described efficient outer screwed pipe heat exchanger of claim 1, it is characterized in that the thread groove of outer wall of described each heat exchanger tube or continuous, or interruption; Perhaps, the two ends outer wall of each heat exchanger tube is the even surface structure, and other is the thread groove structure.
3, by the described efficient outer screwed pipe heat exchanger of claim 2, the thread groove groove depth that it is characterized in that the outer wall of described each heat exchanger tube is 0.2-2mm.。
4, by the described efficient outer screwed pipe heat exchanger of claim 3, the thread groove groove depth that it is characterized in that the outer wall of described each heat exchanger tube is 0.5-1.5mm.
5, by the described efficient outer screwed pipe heat exchanger of claim 1, the porous metallic layers that it is characterized in that the inwall of described each heat exchanger tube adopts 50-120 purpose aluminium powder, iron powder or nickel powder sintering or be painted on the inwall of heat exchanger tube in vacuum high temperature furnace, form rough a large amount of aperture, the thickness of this porous metallic layers is 0.1-0.6mm.
6, by the described efficient outer screwed pipe heat exchanger of claim 5, the thickness that it is characterized in that described porous metallic layers is 0.2-0.3mm.
7, by the described efficient outer screwed pipe heat exchanger of claim 1, the inwall that it is characterized in that described each heat exchanger tube is a thread groove, and its groove depth is 0.1-1mm; Perhaps, the inwall of each heat exchanger tube is a wave groove, and the peak-to-peak value between its crest and the trough is 0.1-1mm.
8, by the described efficient outer screwed pipe heat exchanger of claim 7, it is characterized in that the inner thread groove of described each heat exchanger tube adopts spoke line thread groove.
9, by the described efficient outer screwed pipe heat exchanger of claim 1, it is characterized in that coming support fixation by many rod baffle that are welded on the baffling circle in the middle of described each corrugated tube, rod baffle is thin round bar, is weldingly fixed on to constitute on the baffling circle of annular with level or vertical direction respectively and supports.
10, by the described efficient outer screwed pipe heat exchanger of claim 1, it is characterized in that in the capping of the rear end of housing, being provided with the floating head structure that constitutes by Floating Head Flange and hook circle.
CN 02258564 2002-11-19 2002-11-19 High-performance heat exchanger with external spiral pipes Expired - Fee Related CN2578766Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02258564 CN2578766Y (en) 2002-11-19 2002-11-19 High-performance heat exchanger with external spiral pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02258564 CN2578766Y (en) 2002-11-19 2002-11-19 High-performance heat exchanger with external spiral pipes

Publications (1)

Publication Number Publication Date
CN2578766Y true CN2578766Y (en) 2003-10-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 02258564 Expired - Fee Related CN2578766Y (en) 2002-11-19 2002-11-19 High-performance heat exchanger with external spiral pipes

Country Status (1)

Country Link
CN (1) CN2578766Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101975522A (en) * 2010-11-09 2011-02-16 上海化工研究院 High-efficient heat exchanger
CN108302962A (en) * 2015-12-01 2018-07-20 青岛海尔空调电子有限公司 Partition board and building method, straight tube double-flow dry type case tube heat exchanger and building method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101975522A (en) * 2010-11-09 2011-02-16 上海化工研究院 High-efficient heat exchanger
CN108302962A (en) * 2015-12-01 2018-07-20 青岛海尔空调电子有限公司 Partition board and building method, straight tube double-flow dry type case tube heat exchanger and building method
CN108302962B (en) * 2015-12-01 2020-01-17 青岛海尔空调电子有限公司 Partition plate and construction method, straight pipe double-flow-path dry type shell and tube heat exchanger and construction method

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
C41 Transfer of patent application or patent right or utility model
ASS Succession or assignment of patent right

Owner name: JIANGSU ZHONGSHENG HIGH SCIENCE INDUSTRY CO., LTD

Free format text: FORMER OWNER: ZHONGSHENG PETROCHEMICAL ENGINEERING CO., LTD., JIANGSU PROV.

Effective date: 20040709

TR01 Transfer of patent right

Effective date of registration: 20040709

Address after: 211100 No. 88 Bamboo Road, Jiangning District, Jiangsu, Nanjing

Patentee after: Zhongsheng High Science & Technology Industry Co., Ltd., Jiangsu

Address before: 210004, No. 360, South Nanjing Road, Zhongshan South Road, Jiangsu, 20

Patentee before: Jiangsu Sunpower Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20031008

Termination date: 20101119

C17 Cessation of patent right